EP0244339A1 - Ventilsitz-Einsatz - Google Patents

Ventilsitz-Einsatz Download PDF

Info

Publication number
EP0244339A1
EP0244339A1 EP87630066A EP87630066A EP0244339A1 EP 0244339 A1 EP0244339 A1 EP 0244339A1 EP 87630066 A EP87630066 A EP 87630066A EP 87630066 A EP87630066 A EP 87630066A EP 0244339 A1 EP0244339 A1 EP 0244339A1
Authority
EP
European Patent Office
Prior art keywords
diameter
insert
flange
annular groove
height
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87630066A
Other languages
English (en)
French (fr)
Other versions
EP0244339B1 (de
Inventor
Marvin P. Reece
Peter J. Boote
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shared Technologies Fairchild Telecom Inc
Original Assignee
Rexnord Inc
VSI Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rexnord Inc, VSI Corp filed Critical Rexnord Inc
Publication of EP0244339A1 publication Critical patent/EP0244339A1/de
Application granted granted Critical
Publication of EP0244339B1 publication Critical patent/EP0244339B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats

Definitions

  • the present invention relates to valve seat inserts and in particular to valve seat inserts used in applica­tions where optimum heat transfer is required, e.g. in high performance internal combustion engines.
  • Standard prior art valve seat inserts are press-­fitted into and retained in an engine cylinder head by an interference fit of the insert with an opening in the head.
  • a typical length for such an insert is at least 0.300 inches or 7.6 mm.
  • in­serts provided an adequate performance.
  • a recurring pro­blem however is encountered by the industry for such in­serts. That problem is how to reliably secure or lock the insert into the engine cylinder head so that it does not become dislodged during the operation of the engine.
  • valve seat inserts Hence the need for further development in the state of the art for valve seat inserts. It is believed the pre­sent invention advances the state of the art beyond what is presently known, to what is now needed to answer the new performance requirements of the next generation of in­ternal combustion engine designs.
  • the present invention is an improved valve seat in­sert designed for installation in a prepared opening in an internal combustion engine cylinder head.
  • the present invention achieves an elimination of air gaps or voids which in the past have adversely affected the transfer of heat and consequently the performance of the engine itself.
  • the present invention envisions an in­sert which has a pilot flange, a locking flange and an annu­lar groove defined between the two flanges.
  • the diameter of the annular groove is less than the diameter of the pilot-flange; with the pilot flange diameter being less than the locking flange diameter.
  • the height of the annular groove is less than the locking flange height.
  • a total height range for the insert of the present invention is preferably not less than 0.ll0 inches 2.75 mm nor greater than 0.l80 inches or 4.57 mm.
  • the present invention may be summarized as providing the industry with an insert designed such that the maximum possible air gap volume, which may occur along the pilot flange of the installed insert, is always less than the difference between the volume of the shoulder por­tion of the locking flange and the volume of the annular groove.
  • the annular groove is that space defined between the shoulder portion of the locking flange and the upper surface of the pilot flange.
  • the valve seat insert shown in Figs. l and 2 has a body l0 with three distinct portions, i.e. a first end, a second end, and an intermediate portion defined by the two ends.
  • the insert body itself is ring-shaped in that a bore ll extends through the body from one end to the other.
  • the bore ll of an in­stalled insert provides a passageway within the cylinder head.
  • the first end of the body l0 defines a pilot flange l2. This end of the body l0 first enters the prepared opening in the cylinder head as the insert is being in­stalled.
  • the pilot flange preferably has a smooth exterior surface l3 and a beveled or leading surface l3A for facilitating entry of the insert into a prepared opening.
  • the second end of the body l0 defines a locking flange l5.
  • the locking flange l5 provides a mechanism for preventing rotation of the insert body after it has been installed in the cylinder head.
  • this mechanism is provided by a series of individual serrations or notches l6 arranged along the circumference of the locking flange outer dia­meter.
  • serrations for the anti-rotation feature of the invention is comparable to that which is taught in the earlier Rosan patent discussed in the background above.
  • the two flanges l2, l5 are integrally connected and thus define, between an upper surface l8 of the pilot flange l2 and a lower surface l9 of the locking flange l5, an annular groove 20.
  • the pilot flange l2 has an outer diameter Dl which is less than the outer diameter D2 of the locking flange l5.
  • the outer diameter D3 of the annular groove 20 is less than the diameter Dl of the pilot flange l2.
  • the height Hl of the annular groove 20 is less than the height H2 of the locking flange l5.
  • H3 designates the height of the pilot flange l5.
  • the total height H4 for the insert is significantly less than the standard prior art insert height of 0.300 inches or 7.62 mm. It has been dis­covered that in a preferred embodiment the total height H4 for the insert body should be no greater than 0.l80 inches or 4.57 mm but no less than 0.ll0 inches or 2.75 mm.
  • Hl is equal to 0.040 inches or l.02 mm; H2 equals 0.050 inches or l.27 mm; H3 equals 0.070 inches or l.77 mm; and H4 equals 0.l60 inches or 4.06 mm.
  • the present invention is a "short" insert.
  • FIG. 4 an engine cylinder head 30 of conventional design is illustrated.
  • a valve seat insert l0A and a valve seat insert l0B both constructed in accordance with the design for the preferred embodiment described above, are shown.
  • a prepared opening 3l of a pre-determined diameter may be seen as it would appear just prior to the installation of the valve seat insert l0A, which in this instance represents an exhaust valve seat insert.
  • An intake valve seat insert l0B is shown already installed.
  • the valve seat inserts of the present invention are installed in a conventional manner, i.e. by using a hydraulic press to press the insert into the prepared opening 3l.
  • the diameter Dl for the pilot flange l2 should be substantially equal, and not greater than, the diameter of the prepared opening 3l.
  • Fig. 5 a view of the installed insert l0B of the preferred embodiment is shown partially in cross-section and partially in plan elevation for the understanding of the reader.
  • FIG. 5 A portion of what is shown in Fig. 5 has been greatly enlarged in Fig. 6 to illustrate the particular advantages of the present invention over the known prior art.
  • arrows have been drawn to indicate the directional flow and the resulting compressive forces of the material of the cylinder head opening 3l which is displaced upon installa­tion of the invention.
  • Vl represents the volume of the shoulder portion of the locking flange l5.
  • V2 represents the volume of the annular groove space which is defined as being located directly between the lower sur­face l9 of the locking flange l5 and the upper surface l8 of the pilot flange l2.
  • V3 is the maximum permissible vo­lume for any air gaps which may occur along the exterior surface l3 of the pilot flange.
  • a key feature of the present invention may be variously described as follows:
  • the material of the cylinder head which is displaced by the locking flange, will completely fill the annular groove area of the insert and will place the pilot flange l2 along its exterior surface l3 under a compressive load.
  • the combination of the overfilling of the annular groove area with a compressive force being exerted upon the pilot flange exterior surface l3 will virtually eliminate the occurrence of air gaps between the insert and the cylinder head.
  • V3 the volume of the maximum air gap along the pilot flange exterior surface l3, is elimi­nated. This is achieved because such a volume V3 is always less than the difference between the locking flange shoul­der portion volume Vl and the volume V2 of the annular groove area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Automatic Assembly (AREA)
  • Braking Systems And Boosters (AREA)
  • Magnetically Actuated Valves (AREA)
  • Forging (AREA)
EP87630066A 1986-04-28 1987-04-16 Ventilsitz-Einsatz Expired - Lifetime EP0244339B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US856269 1986-04-28
US06/856,269 US4676482A (en) 1986-04-28 1986-04-28 Valve seat insert

Publications (2)

Publication Number Publication Date
EP0244339A1 true EP0244339A1 (de) 1987-11-04
EP0244339B1 EP0244339B1 (de) 1991-06-05

Family

ID=25323209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87630066A Expired - Lifetime EP0244339B1 (de) 1986-04-28 1987-04-16 Ventilsitz-Einsatz

Country Status (7)

Country Link
US (1) US4676482A (de)
EP (1) EP0244339B1 (de)
JP (1) JPS62261609A (de)
KR (1) KR910004381B1 (de)
BR (1) BR8702036A (de)
DE (1) DE3770517D1 (de)
ES (1) ES2022439B3 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2848245A1 (fr) * 2002-12-10 2004-06-11 Renault Sa Siege de soupape pour culasse de moteur a combustion interne
US10343838B2 (en) 2012-06-18 2019-07-09 K-Fee System Gmbh Portion capsule and use of same for producing a beverage
CN110425050A (zh) * 2019-07-26 2019-11-08 中国第一汽车股份有限公司 一种气缸盖总成成型工艺及气缸盖
US10472165B2 (en) 2012-12-14 2019-11-12 K-Fee System Gmbh Portion capsule and method for producing a beverage by means of a portion capsule
US10669093B2 (en) 2015-02-27 2020-06-02 K-Fee System Gmbh Single serve capsule comprising a filter element connected thereto by sealing
US10737876B2 (en) 2015-07-13 2020-08-11 K-Fee System Gmbh Filter element having a cut-out
US10858177B2 (en) 2010-07-22 2020-12-08 K-Fee System Gmbh Portion capsule having an identifier
US11045035B2 (en) 2015-09-18 2021-06-29 K-Fee System Gmbh Adapter for a single serve capsule
US11084650B2 (en) 2015-06-10 2021-08-10 K-Fee System Gmbh Portion capsule with a three-ply nonwoven fabric

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JPH051609Y2 (de) * 1986-12-01 1993-01-18
US5267723A (en) * 1993-04-21 1993-12-07 Siemens Automotive L.P. Self-aligning lead-in chamfer for a valve seat
US5492091A (en) * 1994-12-23 1996-02-20 Ford Motor Company Thermally conductive valve seat insert assembly
US5694964A (en) * 1996-09-20 1997-12-09 Ford Global Technologies, Inc. Method and article for inserting valve spool into secondary bore
AUPQ090499A0 (en) 1999-06-10 1999-07-01 Peters, William S Heart assist device and system
AUPR669001A0 (en) * 2001-07-30 2001-08-23 Sunshine Heart Company Pty Ltd A fluid pressure generating means
AU2002952691A0 (en) 2002-11-15 2002-11-28 Sunshine Heart Company Pty Ltd Heart assist device utilising aortic deformation
US7862499B2 (en) * 2003-10-30 2011-01-04 Sunshine Heart Company Pty Ltd Blood vessel wrap
WO2005042089A1 (en) 2003-10-31 2005-05-12 Sunshine Heart Company Pty Ltd Synchronisation control system
GB2423027B (en) 2003-10-31 2007-12-27 Sunshine Heart Co Pty Ltd Percutaneous gas-line
US7955248B2 (en) * 2003-11-11 2011-06-07 Sunshine Heart Company Pty Ltd Actuator for a heart assist device
KR20070091332A (ko) * 2005-01-18 2007-09-10 에이에스엠 아메리카, 인코포레이티드 웨이퍼 지지핀 어셈블리
US7360558B1 (en) * 2005-05-31 2008-04-22 Jui-Chien Chen Control valve for drinking water fountain
DE102005050509A1 (de) * 2005-10-21 2007-04-26 Bayerische Motoren Werke Ag Zylinderkopf für eine Brennkraftmaschine
US7595271B2 (en) * 2005-12-01 2009-09-29 Asm America, Inc. Polymer coating for vapor deposition tool
US8206278B2 (en) 2006-08-21 2012-06-26 Sunshine Heart Pty Ltd. Wrap for a heart assist device
US7571893B2 (en) * 2006-11-16 2009-08-11 Asm America, Inc. Valve with high temperature rating
WO2010041368A1 (ja) * 2008-10-09 2010-04-15 三菱電機株式会社 Ｅｇｒバルブ装置
US8864106B2 (en) * 2008-12-03 2014-10-21 Emerson Process Management Regulator Technologies, Inc. Valve seat apparatus having positive retention for use with fluid control devices
US20100236533A1 (en) * 2009-03-23 2010-09-23 Riccardo Meldolesi Valve Seat Insert for a Split-Cycle Engine
MX2012011161A (es) 2010-04-02 2012-12-05 Sunshine Heart Co Pty Ltd Sistemas, metodos y dispositivos de asistencia cardiaca de combinacion.
US9068664B2 (en) * 2010-06-07 2015-06-30 Bermad Cs Ltd. Hydraulic torrent control valve
US20130269647A1 (en) * 2012-04-13 2013-10-17 GM Global Technology Operations LLC Valve seat insert
US20160333751A1 (en) * 2015-05-07 2016-11-17 Frank J. Ardezzone Engine Insert and Process for Installing
CN105065076A (zh) * 2015-07-17 2015-11-18 河北华北柴油机有限责任公司 发动机气门座圈
KR102233205B1 (ko) * 2016-07-29 2021-03-26 닛폰 피스톤 린구 가부시키가이샤 내빠짐성이 뛰어난 밸브 시트
JP6973933B2 (ja) * 2018-01-29 2021-12-01 日本ピストンリング株式会社 耐抜落ち性に優れたバルブシート
JP7022607B2 (ja) * 2018-01-31 2022-02-18 日本ピストンリング株式会社 バルブシート、および、バルブシートとシリンダヘッドとの結合構造
JP7022769B2 (ja) * 2018-01-31 2022-02-18 日本ピストンリング株式会社 バルブシート、およびバルブシート素材
JP7022608B2 (ja) * 2018-01-31 2022-02-18 日本ピストンリング株式会社 バルブシート
US10774939B2 (en) * 2018-04-12 2020-09-15 Cla-Val Co. Valve with integral insert-cast seat and related method
US11215089B2 (en) * 2019-12-13 2022-01-04 Caterpillar Inc. Engine head assembly with valve seat insert with stiffness relief cutout

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GB367429A (en) * 1930-11-20 1932-02-22 Richard Wake Improvements relating to the valve seatings of internal-combustion engines
US4236495A (en) * 1978-10-13 1980-12-02 Rosan, Inc. Self locking valve seat insert

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US4236495A (en) * 1978-10-13 1980-12-02 Rosan, Inc. Self locking valve seat insert

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2848245A1 (fr) * 2002-12-10 2004-06-11 Renault Sa Siege de soupape pour culasse de moteur a combustion interne
US10994923B2 (en) 2010-07-22 2021-05-04 K-Fee System Gmbh Portion capsule having an identifier
US11667465B2 (en) 2010-07-22 2023-06-06 K-Fee System Gmbh Portion capsule having an identifier
US20210086986A1 (en) 2010-07-22 2021-03-25 K-Fee System Gmbh Portion capsule having an identifier
US11542094B2 (en) 2010-07-22 2023-01-03 K-Fee System Gmbh Portion capsule having an identifier
US11820586B2 (en) 2010-07-22 2023-11-21 K-Fee System Gmbh Portion capsule having an identifier
US10858177B2 (en) 2010-07-22 2020-12-08 K-Fee System Gmbh Portion capsule having an identifier
US10858176B2 (en) 2010-07-22 2020-12-08 K-Fee System Gmbh Portion capsule having an identifier
US11554910B2 (en) 2010-07-22 2023-01-17 K-Fee System Gmbh Portion capsule having an identifier
US11548722B2 (en) 2010-07-22 2023-01-10 K-Fee System Gmbh Portion capsule having an identifier
US11919703B2 (en) 2010-07-22 2024-03-05 K-Fee System Gmbh Portion capsule having an identifier
US10870531B2 (en) 2010-07-22 2020-12-22 K-Fee System Gmbh Portion capsule having an identifier
US11465830B2 (en) 2010-07-22 2022-10-11 K-Fee System Gmbh Portion capsule having an identifier
US11230430B2 (en) 2010-07-22 2022-01-25 K-Fee System Gmbh Portion capsule having an identifier
US11254491B2 (en) 2010-07-22 2022-02-22 K-Fee System Gmbh Portion capsule having an identifier
US11465829B2 (en) 2010-07-22 2022-10-11 K-Fee System Gmbh Portion capsule having an identifier
US11312567B2 (en) 2012-06-18 2022-04-26 K-Fee System Gmbh Portion and method for producing a beverage by means of a portion capsule
US10343838B2 (en) 2012-06-18 2019-07-09 K-Fee System Gmbh Portion capsule and use of same for producing a beverage
US11702276B2 (en) 2012-06-18 2023-07-18 K-Fee System Gmbh Portion capsule for preparing a beverage
US10472165B2 (en) 2012-12-14 2019-11-12 K-Fee System Gmbh Portion capsule and method for producing a beverage by means of a portion capsule
US10669093B2 (en) 2015-02-27 2020-06-02 K-Fee System Gmbh Single serve capsule comprising a filter element connected thereto by sealing
US11084650B2 (en) 2015-06-10 2021-08-10 K-Fee System Gmbh Portion capsule with a three-ply nonwoven fabric
US11498750B2 (en) 2015-07-13 2022-11-15 Gcs German Capsule Solution Gmbh Filter element having a cut-out
US10737876B2 (en) 2015-07-13 2020-08-11 K-Fee System Gmbh Filter element having a cut-out
US11045035B2 (en) 2015-09-18 2021-06-29 K-Fee System Gmbh Adapter for a single serve capsule
CN110425050A (zh) * 2019-07-26 2019-11-08 中国第一汽车股份有限公司 一种气缸盖总成成型工艺及气缸盖

Also Published As

Publication number Publication date
BR8702036A (pt) 1988-02-09
DE3770517D1 (de) 1991-07-11
ES2022439B3 (es) 1991-12-01
JPS62261609A (ja) 1987-11-13
KR910004381B1 (ko) 1991-06-26
US4676482A (en) 1987-06-30
EP0244339B1 (de) 1991-06-05
KR870010277A (ko) 1987-11-30
JPH0424528B2 (de) 1992-04-27

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